/* ───────────────────────── base ───────────────────────── */
:root {
  --bg: #07070b;
  --ink: #f4f1ea;
  --accent: #ff2e63;
  --muted: rgba(244, 241, 234, 0.6);
  --font-display: "Archivo", sans-serif;
  --font-body: "Space Grotesk", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: auto; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background-color 1.2s ease;
}

::selection { background: var(--accent); color: #fff; }

/* ───────────────────────── three canvas ───────────────────────── */
#paint-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 2;
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: 0.85;
}

/* ───────────────────────── progress / header ───────────────────────── */
.progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  z-index: 100;
  background: rgba(255, 255, 255, 0.08);
}
.progress__bar {
  height: 100%;
  width: 100%;
  background: var(--accent);
  transform-origin: left;
  transform: scaleX(0);
  transition: background-color 1.2s ease;
}

.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.6rem clamp(1.2rem, 4vw, 3.5rem);
  mix-blend-mode: difference;
}
.header__logo {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.3rem;
  letter-spacing: 0.04em;
  color: #fff;
  text-decoration: none;
}
.header__logo span { font-weight: 300; }
.header__nav { display: flex; gap: 1.8rem; align-items: center; }
.header__nav a {
  color: #fff;
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.75;
  transition: opacity 0.3s;
}
.header__nav a:hover { opacity: 1; }
.header__cta {
  border: 1px solid rgba(255, 255, 255, 0.5);
  padding: 0.45em 1.1em;
  border-radius: 999px;
}

/* ───────────────────────── chapter indicator ───────────────────────── */
.chapter-indicator {
  position: fixed;
  left: clamp(1rem, 2.5vw, 2.4rem);
  bottom: 2.2rem;
  z-index: 80;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  mix-blend-mode: difference;
  color: #fff;
}
.chapter-indicator__num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
}
.chapter-indicator__line {
  width: 42px; height: 1px;
  background: rgba(255, 255, 255, 0.55);
  display: block;
}
.chapter-indicator__label {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.8;
}

/* ───────────────────────── chapters ───────────────────────── */
.chapter {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(6rem, 12vh, 9rem) clamp(1.4rem, 6vw, 6rem);
  overflow: hidden;
  isolation: isolate;
}

.chapter__media {
  position: absolute;
  inset: 0;
  z-index: -2;
  overflow: hidden;
}
.chapter__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;            /* faded in by ScrollTrigger */
  will-change: transform, opacity;
}
.chapter__video--invert { filter: invert(1) contrast(1.05); }

.chapter__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(7, 7, 11, 0.92) 0%, rgba(7, 7, 11, 0.55) 30%, rgba(7, 7, 11, 0.55) 70%, rgba(7, 7, 11, 0.94) 100%);
}
.chapter__veil--deep {
  background:
    radial-gradient(ellipse at center, rgba(7, 7, 11, 0.55) 0%, rgba(7, 7, 11, 0.9) 100%),
    linear-gradient(180deg, rgba(7, 7, 11, 0.85) 0%, rgba(7, 7, 11, 0.35) 50%, rgba(7, 7, 11, 0.9) 100%);
}

.chapter__bignum {
  position: absolute;
  top: 50%;
  right: -2vw;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(14rem, 34vw, 30rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(244, 241, 234, 0.14);
  z-index: -1;
  pointer-events: none;
  user-select: none;
}

.chapter__content {
  position: relative;
  max-width: 720px;
  width: 100%;
}
.chapter__content--wide { max-width: 1180px; }

.chapter__kicker {
  font-size: 0.78rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.4rem;
  transition: color 1.2s ease;
}

.chapter__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  line-height: 0.98;
  text-transform: uppercase;
  letter-spacing: -0.015em;
  margin-bottom: 2.2rem;
}
.chapter__title .char { display: inline-block; will-change: transform; }

.chapter__lead {
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  line-height: 1.55;
  font-weight: 300;
  margin-bottom: 1.4rem;
}
.chapter__lead strong { font-weight: 700; color: var(--accent); transition: color 1.2s ease; }

.chapter__text {
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--muted);
  margin-bottom: 1.4rem;
}

.chapter__tag {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
  transition: border-color 1.2s ease;
}

/* ───────────────────────── hero ───────────────────────── */
.chapter--hero { text-align: center; }
.hero__content { max-width: 1100px; }
.hero__kicker {
  font-size: 0.8rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2rem;
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(3.4rem, 12vw, 10.5rem);
  line-height: 0.92;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero__word { display: block; }
.hero__word .char { display: inline-block; will-change: transform; }
.hero__word--outline {
  color: transparent;
  -webkit-text-stroke: 2px var(--ink);
}
.hero__sub {
  margin-top: 2.4rem;
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 300;
  color: var(--muted);
}
.hero__steps {
  margin-top: 1.2rem;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: center;
  gap: 0.6em;
  align-items: baseline;
}
.hero__step-words {
  position: relative;
  display: inline-block;
  height: 1.3em;
  min-width: 16ch;
  overflow: hidden;
  text-align: left;
  vertical-align: bottom;
}
.hero__step-words span {
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
  opacity: 0;
  will-change: transform, opacity;
  transition: color 1.2s ease;
}

.hero__scroll {
  position: absolute;
  bottom: -18vh;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  white-space: nowrap;
}
.hero__scroll span {
  width: 1px;
  height: 56px;
  background: linear-gradient(to bottom, transparent, var(--accent));
  display: block;
  animation: drip 2s ease-in-out infinite;
}
@keyframes drip {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ───────────────────────── services ───────────────────────── */
.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.2rem;
}
.service {
  position: relative;
  padding: 1.8rem 1.6rem;
  border: 1px solid rgba(244, 241, 234, 0.14);
  border-radius: 14px;
  background: rgba(7, 7, 11, 0.45);
  backdrop-filter: blur(8px);
  transition: border-color 0.4s, transform 0.4s;
  will-change: transform, opacity;
}
.service:hover { border-color: var(--accent); transform: translateY(-6px); }
.service__num {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  transition: color 1.2s ease;
}
.service h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0.7rem 0 0.7rem;
}
.service p { font-size: 0.92rem; line-height: 1.65; color: var(--muted); }

/* ───────────────────────── works ───────────────────────── */
.works {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.4rem;
}
.work {
  display: block;
  text-decoration: none;
  color: inherit;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(244, 241, 234, 0.12);
  background: rgba(7, 7, 11, 0.5);
  backdrop-filter: blur(8px);
  transition: border-color 0.4s, transform 0.4s;
  will-change: transform, opacity;
}
.work:hover { border-color: var(--accent); transform: translateY(-6px); }
.work figure {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #111;
}
.work img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.work:hover img { transform: scale(1.06); }
.work__info { padding: 1.3rem 1.4rem 1.5rem; }
.work__info h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  text-transform: uppercase;
  margin-bottom: 0.55rem;
}
.work__info p { font-size: 0.88rem; line-height: 1.6; color: var(--muted); margin-bottom: 0.8rem; }
.work__tags {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  transition: color 1.2s ease;
}

/* ───────────────────────── logos ───────────────────────── */
.logos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}
.logos img {
  width: 100%;
  height: 76px;
  object-fit: contain;
  padding: 0.9rem;
  border: 1px solid rgba(244, 241, 234, 0.1);
  border-radius: 10px;
  background: rgba(244, 241, 234, 0.04);
  filter: grayscale(1) brightness(2.2);
  opacity: 0.75;
  transition: filter 0.4s, opacity 0.4s;
  will-change: transform, opacity;
}
.logos img:hover { filter: grayscale(0) brightness(1); opacity: 1; }

/* ───────────────────────── contact ───────────────────────── */
.chapter--contact { text-align: center; }
.chapter--contact .chapter__content { max-width: 900px; }
.contact-cta {
  display: inline-block;
  margin-top: 1.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3.4vw, 2.2rem);
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid rgba(244, 241, 234, 0.35);
  border-radius: 999px;
  padding: 0.7em 1.6em;
  transition: background 0.4s, color 0.4s, border-color 0.4s;
}
.contact-cta:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

.footer {
  margin-top: 5.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.footer a { color: inherit; }

/* ───────────────────────── case pages ───────────────────────── */
.chapter__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  will-change: transform, opacity;
}

.case-tags {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 1.6rem;
}
.case-tags span {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  border: 1px solid rgba(244, 241, 234, 0.3);
  border-radius: 999px;
  padding: 0.45em 1.1em;
  color: var(--muted);
}

.case-embed {
  margin-top: 2.4rem;
  aspect-ratio: 16 / 9;
  width: 100%;
  border: 1px solid rgba(244, 241, 234, 0.14);
  border-radius: 14px;
  overflow: hidden;
  background: #000;
}
.case-embed iframe { width: 100%; height: 100%; border: 0; display: block; }

.case-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
  margin-top: 2.4rem;
}
.case-gallery img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(244, 241, 234, 0.12);
  will-change: transform, opacity;
}

.next-case {
  display: block;
  text-decoration: none;
  color: inherit;
  text-align: center;
}
.next-case__kicker {
  font-size: 0.78rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 1.2rem;
}
.next-case__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.4rem, 7vw, 5.5rem);
  line-height: 1;
  text-transform: uppercase;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--ink);
  transition: color 0.5s;
}
.next-case:hover .next-case__title { color: var(--ink); }
.next-case__arrow {
  display: inline-block;
  margin-top: 1.6rem;
  font-size: 2rem;
  color: var(--accent);
  transition: transform 0.4s;
}
.next-case:hover .next-case__arrow { transform: translateX(12px); }

.case-back {
  display: inline-block;
  margin-top: 3.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid rgba(244, 241, 234, 0.3);
  padding-bottom: 0.3em;
  transition: color 0.3s, border-color 0.3s;
}
.case-back:hover { color: var(--ink); border-color: var(--accent); }

/* ───────────────────────── responsive / motion ───────────────────────── */
@media (max-width: 760px) {
  .header__nav a:not(.header__cta) { display: none; }
  .chapter-indicator { display: none; }
  .chapter__bignum { font-size: 11rem; opacity: 0.6; }
}

@media (prefers-reduced-motion: reduce) {
  #paint-canvas { display: none; }
  .chapter__video { opacity: 1 !important; }
  .hero__scroll span { animation: none; }
}